Intense-light lamp.



PATENTED JULY 31', 1906. P. LUCAS.

INT BNSE LIGHTLAMPJ APPLIOATION IILED JAN. 23, 1906.

U ITED STATES PATENT orr on.

lNTENSE-LIG'HT LAMP.

Specification of Letters Patent.

Application filed January 23,1906. Serial No. 242.368.

. To all whom it may concern.-

tor. heat of the waste gases of the lamp for the operation of such electric motor.

Be it known that 1, PAUL LUCAS, engineer,

a subject of the King of Prussia, German Em-. peror, residing at 3 Klixstrasse, in the city of Schoneberg, near Berlin, Kingdom of Prusera, and German Empire, have invented a certain new and useful Improvement in Intense-Light Lamps, of which the following is a s ecification.

as-lig ht incandescent lamps for intense powerful light have heretofore been employed in which an intimate mixture of the gas with the air of combustion for each lamp was produced by a separate ventilator, the latter being operated by a small electricmo- It has also been suggested to utilizetthe However, I am not aware of any suggestion in this way that would admit of practical utilization in an economical manner.

This invention has reference to such a construction of gas-light incandescent lamp where the current for the operation of the ventilator is generated by the lamp' itself, so that a very uniformly burning gas-light of enormous power is produced independently of any exterior source of power and without the structure of the apparatus interfering in any wayinjuriously with the light, inasmuch as an unimpeded radiation of light can take place from the flame in a horizontal direction and also in a downward direction.

Reference is to be had to the accompany ing drawings, forming a part of this specification, in which similar characters of reference indicate corresponding parts in both figures.

Figure 1 is a central sectional view showing an embodiment of the invention." Fig. 2 p

is a plan view of the top of the lamp, the chimney and gas-admission tube being not illustrated. r

The lamp is composed, inthe first place, of the well-known parts the lyre-shaped gasadmission tube a, the burner b, with the burner-head c and the incandescent mantle d, and of the draft-pipe e and the reflector f.

The new and novel device for the automatic operation of any one of such lamps comprises two separate partsthe source of power and the motor or operating device oth of which are so arranged as not to interfere in any way with the unimpeded radiation of the light.

The source of power comprises-a series of thermo-batteries the construction of which is immaterial, but which has to be such asto produce a constant force. The batteries used r atentecl July 31, 1906- in the present instance, given by way of ex ample, consist of a piece of metal g, to the front part of which a heating-stud h and tothe rear part of which a cooling metal sheet i is attached. The batteries are arranged above the flame, and in the present case they are mounted particularly above the reflector-that is to say, the base parts of the elementsconstitute directly the reflector. The

powerful radiation of heat of the flame is ke t off as much as possible from the exterlor so dering-joints of the batteries both by the mounting of the, batteries above the reflector:

and by the arrangement of the centrallyplaced chimney. The heating-studs of the I batteries extend through suitable guides arranged in the chimney-wall and are reaching radially into the chimney. In order to produce a uniform 1powerful heatin of the saidstuds only at t e connecting p aces of the "same with the battery, a cover k, consisting of an asbestos plate, is mounted upon the free ends of the said studs in the center of the chimney, whereby the hot waste gases of the lamps are compelled to rise in the annular; I spacebetween the asbestos plates and thechimney-wall, so as to impart a powerful heat to the studs in the neighborhood of their 0011-.

necting places with the battery. of this arrangement a very excellent effect of the battery is produced. The current generated thereby is conducted to the motor m by means of the conductor Z and by way of the base of the lamp.

The electric motor m of any suitable construction is located in a casing mounted upon the base of the burner. The shaft ,of the motor n is provided with an upward extension for the purpose of directly mounting thereon a ventilator 0, 'which is arranged at a level with the gas-exit openings p, so'as to force the air into a closed annular mixingchamber g. It is advantageous to have sev- By means,

eral gas-nozzles open out into this chamber I IIO rising into the burner-head. By the arrangement of several conduits which lead from the lower mixing-chamber into the burner-head an additional mixing of the fuel of combustion admitted to the burner is insured within the burner-head and an exceedingly quiet flame of very high heating power is produced which results in producing the most perfect eficiency of the incandescent mantle.

What I claim, and desire to secure by Letters Patent of the United States, is

1. In a gas-light incandescent lamp for intense light, a battery of thermo-electric elements located above the flame to be heated by the products of combustion, combined with an electric motor adapted to be supplied by the electric current produced by the battery, a ventilator operated by the motor, a burner, and pipes receiving the air supplied by the ventilator and commingling it with the gas and delivering it toward the burner.

2. In a gas-light incandescent lamp with artificiallyincreased airsupply, a ventilator effecting the introduction of the air in the gas-supplying pipe, said ventilator being arranged below the burner in such a manner, that it does not prevent the radiation of light horizontally and downwardly, an electromotor operating said ventilator and a thermobattery supplying the electric current to the electromotor, said thermobattery being arranged on the top of the flame, where the pro nets of combustion heat the thermo elements.

3. A gas-light incandescent lamp for intense light with artificially-increased air-supply by means of a ventilator, electric driving of the ventilator, a battery of thermo elements for producing the electric current, said thermo elements being arranged on the top of the flame, its heating-studs projecting through the chimney of the lamp.

4. A as-light incandescent lamp for intense lig it, with a ventilator for increasing the supply of combustion-air, and with a reflector above the burner of the lam an electromotor for operating the ventil ator, and thermo elements for producing electric cur rent for the motor, said elements being provided with heating-studs arranged within the chimney of the lamp, while the other parts of said elements extend above the reflector by which they are protected from heat radiating from the lamp.

5. In a gas-light incandescent lamp for in tense light, the combination with a ventilator for increasing the air-supply and electrically driven, of a thermobattery arranged around the chimney of the lamp, the heating-studs of said thermobattery extending through the chimney and a ring-sh aped plate for covering the ends of the said studs in the chimney.

In witness whereof I have hereunto signed my name in the presence of two subscribing witnesses.

PAUL LUCAS. Witnesses:

, HENRY HAsPER,

WOLDEMAR HAUPT. 

